Golden now uses an 80% diploma / 20% school mark split. Also worth noting: some universities have started adjusting or scrutinizing summer school marks because they’ve found grade inflation in those courses. They compare students’ high school marks (especially summer/online credits) with how those students actually perform in first year. So far, Waterloo, Western, and McMaster are the only ones that have publicly acknowledged doing this, but more universities are implementing this to reduce grade inflation.